Tractor shoe



- June 1 1926.

W. E. WINE TRACTOR SHOE Original Filled June 22, 1925 "f l @En Inuevh William lfWne;

25 @5f @y @AMW Patented June l, 1926.

UNITE srarss Ynarrar arten.'

WILLIAM E. WINE, TOLEDO, OHIO, ASSGNOR TO'THE TRACTOR GRIP WHEEL COM- PANY, F TOLEDO, OHIO,

A Coltronnrron OF oit-rio.v

TRACTOR snor.

Original application filed June 22, 1925, Serial No 38,678. `Divided. andths application filed December 22, 1925. Serial No. 77,059.

tainintg means is formed and functionswithin the wheel rim. i

The present application is a divisional one, the y parent application having been led by me on June 22, 1925,bearing SerialY Number 88,678. y

One of the objects of the present invention is to provide a novel for-m of retaining means which is rigidly 'fastened to a tread member, the retaining means being preferably formed of a steel plate which is bent to shape, the ends of the plate being' so bent that they lie adjacent and constitute1 the outer surface of the retaining` means.

The inner surface of the retaining means is preferably flat so that a cross bar or locking bar may be secured thereto. Means are provided for holding the cross bar with relation to 4the retaining means and this same means also functions to secure the retaining means to a tread member.

Another object of the invention isto provide a tractor shoe wherein the tread member and the retaining means are formed of pressed metal so that the shoe as a` whole will be relatively light in' weight.

With these and other objects in view, the

invention consists in certain new and novelcostructions and combination of parts as will be hereinafter more fully described and pointed out in the claims.

In the drawings showing a preferred tion:-

Fig. l is a fragmentary side elevation of a tractor wheel showing several shoes in their operable position.

Fig. 2 is a fragmentary view, partly in section showing the manner of attaching the shoe.

Fig. 3 is a perspective of a reinforcing plate or housing for the reception ofthe retaining means of the shoe.

Fig. 4. is a perspective of the retaining iii'll'i and slightly modified form Of my inven-A Fig. 5 is a perspective of the cross bar which'cooperates with the retaining means and housing, and

Fig. 6 is a. slightly modified form of the retaining means.

Referring now to the drawings more speciically, l have shown a fragmentary portion of a 4wheel comprising therim 1, which is in turn provided with a plurality. of openings 2, while placed on the inner surface of the rim andabout these openings `are the plates or housings 3.

Each of these plates is slightly bent to agree with the arc of the rim and is provided with the holesf at its opposite ends for the reception of rivets Vas may be seen in Fig. 3. Centrally of this housing is the opening 6, the side walls 7 and the small lugs or teeth 8 fo-rming the limiting walls of the opening. These lugs or teeth are slightly rounded at their extremities, extend across the housing on one surface and partly across on the other surface and also extend above andbelow the surfaces as may beseen in the several figures. This plate or housinig not only strengthens the rim of the wheel, but provides bearing surfaces to cooperate with the retaining means 9 as -will be shortly described.

Referring now more particularly to Fig.

1, there is shown a retaining means 9, I

preferably take a flat steel plate, place it in apress and form it in thesha-pe of a tooth,

the Outer edges of the plate lying adjacent to each other, as shown at 10. The apex of the tooth is pressed flat, as at 11, and is provided with two boltI holes 12, while further vholes 13 are formed in the outer wall 0f the tooth, semi-circular portions being cut out'of each of the edges, so that when the tooth is shaped the completed circular openings are provided.

lThe side walls 14; of the retaining means are inclined as there isa rockinig movement imparted to this tooth, and these side walls must Contact with the llugs 8 of the housing B as the wheel revolves, y j

copendng* apjgilieatieng `Serial ANei 21,609, a retaining means in the form of a tooth is shown, but in that instance the tooth is a cast metal one and is provided with a rib extending across the apex which terminates in two small trunnions. In the present instance, the tooth or retaining means is formed of a steel vplate which is readily bent to shape and is provided with a fiat inner surface for the reception of a separate cross bar which is shortly to be described. In the former instance also, a bolt simply passes from the tread member through the lower Wall of the tooth, While in the present instance the bolt passes completely through the tooth and through a separate crossbar as will now be described.

In Fig. 5 I have shown a locking bar 15,

the same being shown in its inverted position. AThe ends 16 of this bar 15 are slightly rounded on their outer surface as these ends rock with the upper surfaces of the end walls 7 of the plate or housing 3 when the bar is in position, andthe wheel rotates.

rIhis 'locking bar 15 is also provided with the two holes 17 so that bolts 18, passed through the tread member 19 may also pass through the aforementioned holes 13 and 12 in the retaining means and through the holes in thelocking bar after Whichthe nuts 18 may be applied to hold the several parts in their operable position.

means`9 will be passed t rough the opening 2 in the Wheel rim and through the opening 6 of the plate 3.

Referring now to thetread member 19, it might be mentioned that this member, per se, ,forms no part of the present invention. It consists of a steel plate which is bent in a heavy press so that its outer surfaceis provided with integral teeth 2O and out- Wardly extending flanges, While its inner surface 2 1 is preferably flat and provided with openings 23 for the aforementioned bolts 18.

In Fig. 6 there is a slightly modified form of retaining means 24 shown, in this instance'two of'them being provided, each of which is slightly shorter in length than the one shown in the preferred form. Also only one bolt opening 2,5 is necessary in the Itop and bottom Walls as a cross bar 2 6 is provided which is longer in length than 'the one in the preferred form, this bar being bolted to both o f the 'retaining members. Of course, the openings '1n thev rlms 1n this instance would have to be in alignment, whereas in the preferred form ,the openings may be staggered andthe tractor shoes staggered, if desired.

rFrom the lforegoing it Will be seen that I have provided a tractor shoe comprising a tread member and a retaining knie-ans in the .form ,0f a pressed 4instel'toeth- Across the apex of the retaining means is bolted a lock- Of course before .this locking bar is ap lied, the' retaining ing bar which locking bar cooperates with a plate or housing riveted to the rim.

It Will also be seen that the retaining means and tread member may rock with relation to the rim .of the Wheel and that the retaining means and tread member may move inwardly and outwardly with respect to the rim of the Wheel and that the load on the locking bar is simply the Weight of the retaining' means and tread 'member as these parts are carried around with the revolution of the Wheel. The shoe as a Whole is relatively light, relatively strong, and relatively cheap to manufacture and may be applied to any form of tractor Wheel.

i Many slight changes might be made Without in any Way departing fromthe spirit and scop'eof the invention.

f 4Having thusl described the same, what I claim as new and desire to secure by Letters Patent isz- A 41. A tractor shoe comprising a tread member, a retaining means comprising a plate bent in the shape of a tooth,'the apex of the toothbeing flattened to form aplane surface, the retaining means adapted to `be placed through an opening in a Wheel rim, a cross bar secured to the flattened surface of the retaining means, and fastening means passing through the tread member, the retaining means and' the cross bar for holding the shoe in operable'relation to the rim.

2. A tractor shoe comprising a tread member, a retaining means comprising a plate bent in the shape of a tooth, the apex being flattened and the outer surface of the tooth also being fiattened, the retaining means adapted to be passed through an opening in the rim of a Wheel, `a cross bar mounted on the flattened apex of the tooth' and the length of the cross bar, being greater than the length of the retaining means;'the tread member, retaining means and cross bar provided with registered' openings and a 'bolt passing through said' openings for securing the said parts in fixed relation and the cross bar holding the several 'parts in operable relation tothe Wheel.

3. A tractorshoe comprising a tread member, a retainingF` means comprising a plate bent in the shape-of a hollow tooth, the ends of theV plate being contiguous andv the inner portion of the tooth being flattened for the reception of a cross bar, a cross bar mounted on said tooth and the ends ofthe cross bar extending beyond the ends of the retaining means and being rounded on their'outer surfaces, and locking means passing through the tread member, retaining means and cross bar for holding the several parts in position.

4f. A tractor shoe comprising a tread member, la retaining means comprising a 'plate bent into the shape of a hollow tooth, the ends of the plate being contiguous and the inner portion of the tooth being flattened for the reception of a cross har, a housing plate f adapted to be placed about an opening in the rim of a Wheel, said housing plate having an opening therein and shortvteeth thereretaining` plate, a Cross har on the inner sun face of the retaining means, and securing,r 1|) means comprising a bolt passing through the tread member, retaining means and said cross bar.

In testimony whereof I affix my signature.

WILLIAM E. WINE. 

